{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2001:IFXT6GVXAUUGEYOXWFVL7G2GZ2","short_pith_number":"pith:IFXT6GVX","canonical_record":{"source":{"id":"physics/0112069","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"physics.comp-ph","submitted_at":"2001-12-20T10:56:47Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"f6472b5c759b834d305929d073e9c31c4f5c43f27dcb39cde78d595030e6b386","abstract_canon_sha256":"daab4283c8e379217d276554d6122d495a403cf589ef19d19f148806ced1403c"},"schema_version":"1.0"},"canonical_sha256":"416f3f1ab705286261d7b16abf9b46cea8679b1b9389f08731b8421d2cbb39c5","source":{"kind":"arxiv","id":"physics/0112069","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"physics/0112069","created_at":"2026-07-04T16:28:52Z"},{"alias_kind":"arxiv_version","alias_value":"physics/0112069v1","created_at":"2026-07-04T16:28:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.physics/0112069","created_at":"2026-07-04T16:28:52Z"},{"alias_kind":"pith_short_12","alias_value":"IFXT6GVXAUUG","created_at":"2026-07-04T16:28:52Z"},{"alias_kind":"pith_short_16","alias_value":"IFXT6GVXAUUGEYOX","created_at":"2026-07-04T16:28:52Z"},{"alias_kind":"pith_short_8","alias_value":"IFXT6GVX","created_at":"2026-07-04T16:28:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2001:IFXT6GVXAUUGEYOXWFVL7G2GZ2","target":"record","payload":{"canonical_record":{"source":{"id":"physics/0112069","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"physics.comp-ph","submitted_at":"2001-12-20T10:56:47Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"f6472b5c759b834d305929d073e9c31c4f5c43f27dcb39cde78d595030e6b386","abstract_canon_sha256":"daab4283c8e379217d276554d6122d495a403cf589ef19d19f148806ced1403c"},"schema_version":"1.0"},"canonical_sha256":"416f3f1ab705286261d7b16abf9b46cea8679b1b9389f08731b8421d2cbb39c5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:28:52.709381Z","signature_b64":"X+NapaVLtV43exjSMbTBYQWTT9lrCRknJc6BMsEZTc+LjjfdgO/wsC7J4UDHbSgvCTf3R1jphZ+rPgibniSPBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"416f3f1ab705286261d7b16abf9b46cea8679b1b9389f08731b8421d2cbb39c5","last_reissued_at":"2026-07-04T16:28:52.708749Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:28:52.708749Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"physics/0112069","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T16:28:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kQF6SqOTPhJ5pIyRZDhK4tUvD5qUphbNzJF9SbT1rUwJ33t5T75cSXc7r6DpHPHR14HAuMB9tfPr7ZDNmX8xDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T06:49:32.038466Z"},"content_sha256":"6fd98c2c98cfba47ad006ab6e225229da16e137785c1c27c1040078cc56b960a","schema_version":"1.0","event_id":"sha256:6fd98c2c98cfba47ad006ab6e225229da16e137785c1c27c1040078cc56b960a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2001:IFXT6GVXAUUGEYOXWFVL7G2GZ2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Beyond the poor man's implementation of unconditionally stable algorithms to solve the time-dependent Maxwell Equations","license":"","headline":"","cross_cats":["physics.optics"],"primary_cat":"physics.comp-ph","authors_text":"H. De Raedt, J.S. Kole, M.T. Figge","submitted_at":"2001-12-20T10:56:47Z","abstract_excerpt":"For the recently introduced algorithms to solve the time-dependent Maxwell equations (see Phys.Rev.E Vol.64 p.066705 (2001)), we construct a variable grid implementation and an improved spatial discretization implementation that preserve the property of the algorithms to be unconditionally stable by construction. We find that the performance and accuracy of the corresponding algorithms are significant and illustrate their practical relevance by simulating various physical model systems."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"physics/0112069","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/physics/0112069/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T16:28:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jSUMTPeBunO9bD3PuD6ZY07yC+ucoorVyuEoNujd6/m2p8fyR+SWCHvgFF5HDSnPcIBAWyi3hagtso1p/Jr0BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T06:49:32.038939Z"},"content_sha256":"5898f40ce15055c9cd086fe2ba84d6884aeea72adc8f82d401958687ca93a811","schema_version":"1.0","event_id":"sha256:5898f40ce15055c9cd086fe2ba84d6884aeea72adc8f82d401958687ca93a811"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IFXT6GVXAUUGEYOXWFVL7G2GZ2/bundle.json","state_url":"https://pith.science/pith/IFXT6GVXAUUGEYOXWFVL7G2GZ2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IFXT6GVXAUUGEYOXWFVL7G2GZ2/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-05T06:49:32Z","links":{"resolver":"https://pith.science/pith/IFXT6GVXAUUGEYOXWFVL7G2GZ2","bundle":"https://pith.science/pith/IFXT6GVXAUUGEYOXWFVL7G2GZ2/bundle.json","state":"https://pith.science/pith/IFXT6GVXAUUGEYOXWFVL7G2GZ2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IFXT6GVXAUUGEYOXWFVL7G2GZ2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2001:IFXT6GVXAUUGEYOXWFVL7G2GZ2","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"daab4283c8e379217d276554d6122d495a403cf589ef19d19f148806ced1403c","cross_cats_sorted":["physics.optics"],"license":"","primary_cat":"physics.comp-ph","submitted_at":"2001-12-20T10:56:47Z","title_canon_sha256":"f6472b5c759b834d305929d073e9c31c4f5c43f27dcb39cde78d595030e6b386"},"schema_version":"1.0","source":{"id":"physics/0112069","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"physics/0112069","created_at":"2026-07-04T16:28:52Z"},{"alias_kind":"arxiv_version","alias_value":"physics/0112069v1","created_at":"2026-07-04T16:28:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.physics/0112069","created_at":"2026-07-04T16:28:52Z"},{"alias_kind":"pith_short_12","alias_value":"IFXT6GVXAUUG","created_at":"2026-07-04T16:28:52Z"},{"alias_kind":"pith_short_16","alias_value":"IFXT6GVXAUUGEYOX","created_at":"2026-07-04T16:28:52Z"},{"alias_kind":"pith_short_8","alias_value":"IFXT6GVX","created_at":"2026-07-04T16:28:52Z"}],"graph_snapshots":[{"event_id":"sha256:5898f40ce15055c9cd086fe2ba84d6884aeea72adc8f82d401958687ca93a811","target":"graph","created_at":"2026-07-04T16:28:52Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/physics/0112069/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"For the recently introduced algorithms to solve the time-dependent Maxwell equations (see Phys.Rev.E Vol.64 p.066705 (2001)), we construct a variable grid implementation and an improved spatial discretization implementation that preserve the property of the algorithms to be unconditionally stable by construction. We find that the performance and accuracy of the corresponding algorithms are significant and illustrate their practical relevance by simulating various physical model systems.","authors_text":"H. De Raedt, J.S. Kole, M.T. Figge","cross_cats":["physics.optics"],"headline":"","license":"","primary_cat":"physics.comp-ph","submitted_at":"2001-12-20T10:56:47Z","title":"Beyond the poor man's implementation of unconditionally stable algorithms to solve the time-dependent Maxwell Equations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"physics/0112069","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:6fd98c2c98cfba47ad006ab6e225229da16e137785c1c27c1040078cc56b960a","target":"record","created_at":"2026-07-04T16:28:52Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"daab4283c8e379217d276554d6122d495a403cf589ef19d19f148806ced1403c","cross_cats_sorted":["physics.optics"],"license":"","primary_cat":"physics.comp-ph","submitted_at":"2001-12-20T10:56:47Z","title_canon_sha256":"f6472b5c759b834d305929d073e9c31c4f5c43f27dcb39cde78d595030e6b386"},"schema_version":"1.0","source":{"id":"physics/0112069","kind":"arxiv","version":1}},"canonical_sha256":"416f3f1ab705286261d7b16abf9b46cea8679b1b9389f08731b8421d2cbb39c5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"416f3f1ab705286261d7b16abf9b46cea8679b1b9389f08731b8421d2cbb39c5","first_computed_at":"2026-07-04T16:28:52.708749Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:28:52.708749Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"X+NapaVLtV43exjSMbTBYQWTT9lrCRknJc6BMsEZTc+LjjfdgO/wsC7J4UDHbSgvCTf3R1jphZ+rPgibniSPBg==","signature_status":"signed_v1","signed_at":"2026-07-04T16:28:52.709381Z","signed_message":"canonical_sha256_bytes"},"source_id":"physics/0112069","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6fd98c2c98cfba47ad006ab6e225229da16e137785c1c27c1040078cc56b960a","sha256:5898f40ce15055c9cd086fe2ba84d6884aeea72adc8f82d401958687ca93a811"],"state_sha256":"d2ea9ed40e160acf2f945293f5177699dd2abdeb409e98258c1b8d96cd38f4ab"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AhIaKpPjOrepfK+B6yBrmYapZA9/nvzfLgb6DPGlea5sVEpOjvictr0U8O2hGv83u1PoF564Ga/XMn7dKfKCAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T06:49:32.045699Z","bundle_sha256":"099e5388f53045ac24e01e8a8ccf54c324d40fafc772d9b84d3308bd2dd707ee"}}